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PLATE XIX. 



Fiq Page. 



1. Caturns parbeckensis, A. S. Woodward ; head, etc., crushed in right side 



view, nat. size. — Middle Purbeck Beds ; Swan age. The type speci- 

 men. British Museum, no. 46911. cl., clavicle; d., dentary ; hy., 

 hypocentrum ; mx., maxilla ; pet., base of pectoral fin ; pmx., pre- 

 maxilla; smx., supramaxilla. 85. 



2. Ditto ; left mandibular ramus, outer view, nat. size. — Ibid. Sedgwick 



Museum, Cambridge, ag., angular; co. , coronoid ; d., dentary. 86. 



3. Oaturus tenuidens, A. S. Woodward ; left maxilla, inner view, nat. size, 



with two teeth enlarged five times (3 a). — Ibid. Egerton Collection 

 (B. M. no. P. 969). 87. 



4. Ditto ; right dentary, outer view, nat. size, with two teeth enlarged 



four times (4a). — Ibid. British Museum, no. 40656. 87. 



5. Amiopsis damoni (Egerton) ; nearly complete fish, right side view, nat. 



size. — Purbeck Beds ; Portland. British Museum, no. 41156. 91. 



6. Ditto ; some abdominal flank-scales of type specimen, four times nat. 



size. — Purbeck Beds ; Bincombe, near Weymouth. Egerton Collec- 

 tion (B. M. no. P. 563.) 92. 



7. Amiopsis sp. ; right maxilla, without teeth, outer view, nat. size. — Lower 



Purbeck Beds ; Portland. British Museum, no. P. 8376. 94. 



8. Amiopsis sp. ; left mandibular ramus, inner view, nat. size, with points 



of teeth broken away. — Ibid. British Museum, no. P. 8377. 94. 



